- Ammonium sulfide
- Ammonium trisulfide
- Diammonium trisulfide
Ruby red liquid with a strong ammonia odor.
Can be applied directly to soil as a a fertilizer.
Registry Numbers and Inventories.
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
0 - 6
Boiling point, °C
Vapor pressure, mmHg
314 (21 C)
1.125 - 1.155 g/cm3 (20 C)
Solubility in water
Hazards and Protection.
Store in well ventilated areas in enclosed containers. Do not store combustibles in the area of storage vessels. Keep away from any sources of heat or flame. Store tote and smaller containers out of direct sunlight at moderate temperatures (<32 C)
Gloves, boots, and chemical suit should be worn to prevent liquid contact. Wash contaminated clothing prior to reuse. Contaminated shoes cannot be cleaned and should be discarded. Chemical goggles and a full face shield.
Wear self-contained breathing apparatus, pressure demand, MSHA/NIOSH (approved or equivalent).
Small releases: Confine and absorb small releases on sand, earth or other inert absorbent. Released material may contain residual sulfides. Spray with weak (~5%) hydrogen peroxide to oxidize sulfides. Large releases: Confine area to qualified personnel. Wear proper protective equipment. Shut off release if safe to do so. Dike spill area to prevent runoff into sewers, drains (possible explosive mixtures) or surface waterways (potential aquatic toxicity). Spray product vapors with water spray or mist. Recover as much of the solution as possible. Treat remaining material as a small release (above).
Stable at normal temperatures and pressures.
Strong oxidizers such as nitrates, nitrites or chlorates can cause explosive mixtures if heated to dryness. Acids will cause the release of hydrogen sulfide and ammonia, highly toxic gases. Alkalies will accelerate the evolution of ammonia. Ammonium polysulfide is not compatible with copper, zinc or their alloys (i.e. bronze, brass, galvanized metals, etc.).
Heating this product will initially evolve ammonia. As the pH of the solution decreases more hydrogen sulfide vapors will evolve. Continued heating will also cause oxides of nitrogen to be released.
Upper exp. limit, %
Lower exp. limit, %
Extinguish using water spray or foam or as appropriate for combustibles involved in fire. Because of the possible presence of toxic gases and the corrosive nature of the product, wear self-contained brequivalent) and full protective gear.
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
When heated or diluted ammonia vapors and hydrogen sulfide vapors will evolve. Both of these gases may form explosive mixtures with air. (See Section 5.2) Keep containers/storage vessels in fire area cooled with water spray.
Fire may produce irritating, corrosive and/or toxic gases.
Ingestion of product solution will cause irritation and corrosion of the gastrointestinal tract to include nausea, vomiting and diarrhea. Contact with stomach acid will cause highly toxic hydrogen sulfide to evolve.
nhalation of product vapors (ammonia and hydrogen sulfide) will cause dizziness and unconsciousness possibly resulting in serious falls from elevated positions..
Contact with product mist or solution will cause skin irritation and may result in corrosion of the skin.
Contact with the eyes by product mist or solution will cause irritation and a burning sensation. Eye contact may result in severe corneal injury.
DO NOT INDUCE VOMITING. If victim is conscious, immediately give large quantities of water. If vomiting does occur, continue to give fluids. Obtain immediate medical attention.
Remove victim from contaminated atmosphere. If breathing is labored, administer oxygen. If breathing has ceased, clear airway and start mouth to mouth resuscitation. If heart has stopped beating, external heart massage should be applied. Obtain immediate medical attention.
Immediately flush with large quantities of water. Remove contaminated clothing under a safety shower. Obtain immediate medical attention.
Immediately flush with large quantities of water for 15 minutes. Hold eyelids apart during irrigation to insure thorough flushing of the entire area of the eye and lids. Obtain immediate medical attention.